52152641 has 4 divisors (see below), whose sum is σ = 52369284. Its totient is φ = 51936000.

The previous prime is 52152631. The next prime is 52152673. The reversal of 52152641 is 14625125.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35952016 + 16200625 = 5996^2 + 4025^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52152641 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52152641.

It is not an unprimeable number, because it can be changed into a prime (52152631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107960 + ... + 108441.

It is an arithmetic number, because the mean of its divisors is an integer number (13092321).

Almost surely, 2^52152641 is an apocalyptic number.

It is an amenable number.

52152641 is a deficient number, since it is larger than the sum of its proper divisors (216643).

52152641 is a wasteful number, since it uses less digits than its factorization.

52152641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216642.

The product of its digits is 2400, while the sum is 26.

The square root of 52152641 is about 7221.6785444937. The cubic root of 52152641 is about 373.6159731664.

Adding to 52152641 its reverse (14625125), we get a palindrome (66777766).

The spelling of 52152641 in words is "fifty-two million, one hundred fifty-two thousand, six hundred forty-one".